In view of the rapid progress of human civilization in the past half century, the use of environmental resources has been exhausted, resulting in environmental changes and destruction that have gradually affected human life. At present, it is found that only the widespread planting of trees can alleviate the effects of environmental damage. However, due to the natural papers required by human civilization, the cartons and pallets required for industrial development, etc., all use tree materials as raw materials, if not managed to replace natural paper, although Planting trees, I believe that trees will not increase but decrease, and the goal of absorbing trees to slow down environmental damage is not achieved.
　　 In view of this, the South Asian company started research and development in 1991 and spent tens of millions of dollars in seven years. It was finally officially launched in May 1998. Synthetic paper with PP as the main raw material has lower specific gravity, good rigidity and good shielding property than ordinary synthetic paper. It is most likely to replace synthetic paper of natural paper and is registered as "Pearl Paper". Synthetic paper generally refers to non-fibrous paper, plastic-based paper, which may include inorganic materials and silicon or lime in addition to the main components (polypropylene or polyolefin).
　　 structure
　　 The composition of pearl paper is the same as ordinary white paper, which consists of three parts: the bottom fiber, the filler and the surface coating. Unlike ordinary whiteboard paper, there are particles that have a pearlescent effect in the surface coating. The particles are composed of titanium dioxide (or other metal oxide) and mica particles, and the mica particles are formed by coating titanium dioxide (or other metal oxide), and the structure is in the form of flakes.
　　 specification
　　 Pearl paper has single-sided and double-sided parts, which can be produced according to different requirements such as demand, color, quantitative (gram weight), texture and size.
　　 250G, 280G, 100 per pack.
　　 Direction of the filament flow: positive parallel to 1092mm, large parallel to 1194mm.
　　 Tensile strength: greater than or equal to 70N/15m...
　　 Folding resistance: The product is folded at 180° (first folded back, then folded forward on the same crease and double folded) 20 times without cracking and damage (except for products with a basis weight of 300 or more) .
　　 PH value: 8.0 ~ 9.5, online moisture: 4% ~ 9%.
　　 Scope of application
　　 High-end albums, books, fine packaging, packaging boxes, greeting cards, tags and other widely used.
　　 Characteristics
　　 1. Low surface energy and poor adsorption performance to ink
　　 Because the surface structure of mica and titanium dioxide (or other metal oxides) is smooth, and the paper surface requires light in the papermaking process (so that the pearlescent effect can better penetrate the coating into the human eye), the pearl paper is more common than ordinary The surface energy of the whiteboard paper is much smaller, and the ink is less likely to adhere and absorb during printing, and is not easy to dry.
　　 2, the surface pearl effect is easy to be destroyed.
　　 Relatively speaking, pearl paper costs are higher.